Input: return correct size when reading modalias attribute

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 3038c26..b149c94 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -629,7 +629,7 @@
 
 	len = input_print_modalias(buf, PAGE_SIZE, id, 1);
 
-	return max_t(int, len, PAGE_SIZE);
+	return min_t(int, len, PAGE_SIZE);
 }
 static CLASS_DEVICE_ATTR(modalias, S_IRUGO, input_dev_show_modalias, NULL);